Fudgy, chocolatey, and with an irresistible cookie butter swirl, these Cookie Butter Brownies are going to be your new favorite! Makes 16 small brownie bites or 9 large brownies.
Preheat your oven to 350°F. Line a 9×9 square pan with parchment paper and set aside.
Melt butter and chocolate in a medium saucepan or microwave-safe bowl. Heat on low heat and stir with a wooden spoon or rubber spatula until melted and combined.
If using microwave: melt in 20-second increments, stirring.
Stir in the sugars while the mixture is hot.
Add eggs; beat until well combined, followed by the salt and vanilla.
Add cocoa powder and flour into the egg mixture and mix until it’s a thick batter.
Spoon the cookie butter into a small microwave-safe bowl, and cook for 20-30 seconds to soften the cookie butter. It should be runny.
Pour the batter into the prepared pan. Drizzle cookie butter on top of the brownie batter, using a knife to swirl the cookie butter around to make a swirly pattern. Do not over mix!
Bake the brownies for around 30-35 minutes or until a knife inserted into the pan comes out clean.